9I制作厂免费

Parents taking a gander at their kid鈥檚 math textbook and wondering what the heck they鈥檙e looking at may want to check out a recent study from the Frontier Centre for Public Policy, based in Winnipeg. 鈥淟ike many of my colleagues, I am dismayed by the state of the mathematics instruction in elementary and secondary schools,鈥� states 9I制作厂免费 math professor Pengfei Guan, quoted in Zwaangstra鈥檚 paper.